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Finding the Fourth Proportional to 488,129.91, 732,712.47 and 432,332.25

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Solution

The fourth proportional to 488,129.91, 732,712.47 and 432,332.25 is: 648,956.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,129.91 : 732,712.47 = 432,332.25 : x
  2. Step 2: Convert to fraction form
    488,129.91/732,712.47 = 432,332.25/x
  3. Step 3: Cross multiply
    488,129.91x = 732,712.47 × 432,332.25
  4. Step 4: Simplify right side
    488,129.91x = 316,775,230,758.16
  5. Step 5: Solve for x
    x = 316,775,230,758.16/488,129.91
  6. Step 6: Final answer
    x = 648,956.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.